Steering control device
First Claim
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1. A steering control apparatus comprising;
- target steering reaction torque generation means for generating a target steering reaction torque as a target value of a steering reaction torque to be applied to a steering wheel, and for controlling steering reaction torque to coincide with the target steering reaction torque, wherein the target steering reaction torque generation means includes steering shaft reaction torque estimation means for estimating a steering shaft reaction torque, andreference road reaction torque estimation means for estimating a reference road reaction torque, the target steering reaction torque generation means using the steering shaft reaction torque estimated by the steering shaft reaction torque estimation means and the reference road reaction torque estimated by the reference road reaction torque estimation means to set the target steering reaction torque.
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Abstract
In an electrical power steering apparatus, steering shaft reaction torque is estimated by a steering shaft reaction torque estimation unit, and a reference road reaction torque is estimated by a reference road reaction torque estimation unit. The estimated steering shaft reaction torque and the reference road reaction torque are weighted, and, in response, a target steering reaction torque is set by a target steering reaction torque generation unit, hysteresis width and slope of the target steering reaction torque are respectively adjusted, and steering feeling is thereby easily improved.
48 Citations
5 Claims
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1. A steering control apparatus comprising;
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target steering reaction torque generation means for generating a target steering reaction torque as a target value of a steering reaction torque to be applied to a steering wheel, and for controlling steering reaction torque to coincide with the target steering reaction torque, wherein the target steering reaction torque generation means includes steering shaft reaction torque estimation means for estimating a steering shaft reaction torque, and reference road reaction torque estimation means for estimating a reference road reaction torque, the target steering reaction torque generation means using the steering shaft reaction torque estimated by the steering shaft reaction torque estimation means and the reference road reaction torque estimated by the reference road reaction torque estimation means to set the target steering reaction torque. - View Dependent Claims (2, 3, 4, 5)
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Specification